J-cak ventilator



y e hat we, D. H. {.Fox` and o e FIN`1:`," `Reading,pin theeounty ofV Berks and State ,offPennsylvanim have. in-

" nted a new H and useful Improvement in drawing, forming ypa in which` j f y Figuren` is a side ele ation oa portion ralroadfjear,` showing" pes, fan chamber andfwater tank.)` Fig. y es" a ver-tioal `transverse` seetiongof railroa ear taken Ethrough `xis` of fan shaft.` y `Fig.;3` is. aninvertedview f car bodyY showing connection of inj eeting ubes with tank. e Fig. `is a viewshowing "ipe Pand its eonnectionlgwith"passage Z.`

Similar letters denotethe samepart. 3 Thedesign oit` our invention iswthe certain y e 1 "air` and dust, simul# aneo-usly with th which .we "draw fromthe` outside `and vforce through water previousj `to its entering the f car," byfmeansfofasmall suction fan situted beneath thejfear and driven by `suitable c nneotionwith oneofthe driving axles.`

e; invention "Consists in y constructing in on the roof ofthebar, along shallow` hambler, opening `atwseveral points tothe inf. `terior` of the` car `and communicating with a `chamberofthe an caseso that by the revol lution "of the fan contained in said chamber-and mounted onithesame shaft as the fandrawng `in the `:Eres "r, the long shal-v ow chamber on the to" of` vthe ear will be ept in a partiallyexh usted state during he running of :thecar`, creating upward Currents through *all the openings in the .`rooi:',.`and eiieoting" a` thorough removal of `the dustand vitiatedfair, the details of con-` nnexeddrawing.

the trucks and Cf the wheels. Constructer a,`closed attop and Communicating with he interior fof thecar by` the usual openings b,"`of :which: *there `areffgenerally; three, hough more may be `constructed if` necesary; thisfchamber y (affrunning the entire j ength of the carl `'Ihegsldes of thischam er` are elose with "the `exception of the x oF REAninGQPENNsxnvANiAf i V An viiivriruiriicirt.;` e i hejMode of VentilatingRailroadCars; and@ `we do hereby declare that` theufollo'gwingisa ull, clear," andfexaot` description of theI ame,` reference being" had to. thef annexed y this specification,

nlection of pure air;"

e struction, arrangement and uoperation'being" 5 s set `forth inthe following description and `12 siegdafea nays, .11555 the; roof and side yofthe car, and enters; the

in Fig. `2. Thisfanfcase d is divided bythe l partition .Qforming `two hambers `ZL h/f ntanng-zthefansfiandgf,inounted-on the 1same`1axle, and vrevolvel` fromthe axle e bye" bandsh and gleading romdouble pulley z" onthe truclrto axle e andvfan shaft pulley.`

Leading from the fan Vchamber Zi. is a 4passage .la connecting it"y with the `water chamber D from which issues the passage Z terminatingin the ,tubes in. T hese tubes `m run longitudinally under` the bottom of the e "car, as shown in Fig. 3, andat various points `have branches n, leading tothe interior of e the car, where they terminate in rose heads. `The chamber L Coi'nmunicates with the `open airl by `the ,tube o.

The passagef'Z Communieates with the discharge pipeP as shown in Fig. 4, which pipe has near-` its` top perforations m, covered by a cap 8,' and communicating with the external air when said cap is raised. Between the pipe P and tubes m the passage Z Jisprovided Awith' aout-oliil fv, operated by rod `u, `passing through Hoor t tothe interior of the car.

The water chamber has an ingress passage yto which hose is "attached at water stations or supply, a screw plug e in the botchainber h of the elosefanlcaseol as shown` `fofthe tubeiqwhich"tubepasses:along I tom serves to discharge the water that has e been sufficiently used.

The operation of our mode of ventilation is as follows. The movement of the driving axles will .produce the revolutionof the fans j ff as shown-by arrow Fig. `l,V a suitable duce `a partial vacuum in the chamber a,

creating currents through the openings b as shown by arrows in F ig. 2, carrying olf and i e e e v dischargingoutside of the car bythe mouth In `the drawing :A is the body of the car, 3

g,-the vitiated `air and dust from the in* e A e temor. d in the roof of the car is theshallow cham- The fan f draws the air `from the outside water chamber, whence if the out on o be `open as shown by o, it will pass by pipes m and n to the interior of the car. The

valve v is only used when the currentv from lthe outsidebecomes too strong, as by turn- Y ing `it slightly across the passage Z a por- "through tube c and forces it through the municating at several points with the interior of the car and by a tube with a fan chamber beneath the car, whereby the partial exhaust created in said chamber by the running of the car, produces a number of upward currents simultaneously, in various parts of the car, suficient to carry olf the vitiated air and dust from the same, as herein before set forth.

In testimony whereof, we have hereunto signed our names before two subscribing 'witnesses D. H. FOX. JOHN FINK.

Witnesses:

MATTHIAS MENGEL, W. Y. LYON. 

